Malicious PDF — malware analysis report

Static analysis result for SHA-256 5908628ebd9a5d6e…

MALICIOUS

PDF

38.9 KB Created: 2021-05-23 07:46:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 1e7dbe5f147f74f842c9c9a2752b3230 SHA-1: c7232f3f2322105dba0159cf2094c8bd5744b99b SHA-256: 5908628ebd9a5d6ec411ac2c290da3d26defa1c2c47619ba9726a921858046dc
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for 'free TikTok fans' and 'game hacks', directing users to a malicious URL. The ML classifier also flagged the PDF as malicious. While no scripts were directly extracted, the PDF structure and embedded links indicate an attempt to redirect users to potentially harmful content, likely as part of a phishing or scam campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8060

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/835599320/free-tiktok-fans-no-verification-game-hack PDF link annotation
    • http://interpretation-dessins-enfants.net/images/how-do-you-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/roblox-comroblox_GM431946152.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/free-coin-coin-master_GM406889139.pdfIn PDF document text
    • http://interpretation-dessins-enfants.net/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000328b.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x328B 25900 bytes
SHA-256: cfa4034e182de1101d463763a224685883c63b7db63dad6aa7a856268e12cc43
font_01_sfnt_off00006df5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF5 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off000077da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77DA 17816 bytes
SHA-256: db30cff21771a834018d301e3e15668d4f696dd14c251b75c79f93eed26cd5f9

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